September 2025

Frequency Division Multiple Access

Frequency Division Multiple Access, often called FDMA, represents one of the most fundamental techniques used in communication systems to allow multiple users to share the same communication medium. Engineers designed…

Ham Radio in Apollo Missions

When humanity set its sights on the Moon, communication stood as one of the most critical challenges. NASA developed sophisticated systems for mission control and spacecraft operations, yet ham radio…

Early Ham Radio Pioneers

Early ham radio pioneers were primarily hobbyists, experimenting with Morse code and radio waves starting in the 1920s. For instance, Lee de Forest, an American inventor, significantly contributed to early…

Radtel RT-910B Overview

The Radtel RT-910B is a multi-band handheld radio that combines power, flexibility, and modern programming options. It covers a wide frequency range, including the 6-meter band from 45 to 59…

Weatherproofing Gear In The Field

When you operate in the field, weatherproofing gear is essential. Weather conditions can change rapidly and unpredictably. Rain, snow, wind, and dust all pose risks to sensitive equipment. Therefore, understanding…

Radioddity DB40-G GMRS Transceiver

The Radioddity DB40-G is a 40-watt, mobile GMRS transceiver designed for drivers, off-roaders. In addition to base users who want strong UHF performance in a compact chassis. Moreover, it adds…

ICOM’s D-STAR and Its Origins

ICOM’s D-STAR, which stands for Digital Smart Technologies for Amateur Radio, is a digital communication protocol developed specifically for ham radio. It was created in the late 1990s by the…

V3 Malachite SDR Radio (Malachite-DSP)

The V3 Malachite SDR Receiver (Malahit-DSP), Dual Antenna, firmware 1.10d, is a portable, stereo-capable software defined receiver that covers roughly 50 kHz to 2 GHz. It combines a sensitive RF…

Band Conditions and Time of Day

Band Conditions and Time of Day varies dramatically, understanding these changes is essential for both local and DX communications. Solar activity, ionospheric conditions, and atmospheric factors influence how signals travel…